<template>
  <div
    ref="rightPanelRef"
    :class="{ show: show }"
    class="rightPanel-container"
  >
    <div class="rightPanel-background" />
    <div class="rightPanel">
      <div
        class="handle-button"
        :style="{'top':buttonTop+'px','background-color':theme}"
        @click="show=!show"
      >
        <el-icon v-if="show">
          <Close />
        </el-icon>
        <el-icon v-else>
          <Setting />
        </el-icon>
      </div>
      <div class="rightPanel-items">
        <slot />
      </div>
    </div>
  </div>
</template>

<script setup>
import { addClass, removeClass } from '@/utils/index.js'

const props = defineProps({
  clickNotClose: {
    default: false,
    type: Boolean
  },
  buttonTop: {
    default: 250,
    type: Number
  }
})

const show = ref(false)
const theme = ref('#000')

watch(() => show.value, (value) => {
  if (value && !props.clickNotClose) {
    addEventClick()
  }
  if (value) {
    addClass(document.body, 'showRightPanel')
  } else {
    removeClass(document.body, 'showRightPanel')
  }
})

onMounted(() => {
  insertToBody()
})

const rightPanelRef = ref(null)
onBeforeUnmount(() => {
  rightPanelRef.value.remove()
})

const addEventClick = () => {
  window.addEventListener('click', closeSidebar)
}
const closeSidebar = (evt) => {
  const parent = evt.target.closest('.rightPanel')
  if (!parent) {
    show.value = false
    window.removeEventListener('click', closeSidebar)
  }
}
const insertToBody = () => {
  const elx = rightPanelRef.value
  const body = document.querySelector('body')
  body.insertBefore(elx, body.firstChild)
}

</script>

<style lang="scss" scoped>
.rightPanel-container {
  &:deep(.showRightPanel) {
    overflow: hidden;
    position: relative;
    width: calc(100% - 15px);
  }
  .rightPanel-background {
    opacity: 0;
    transition: opacity .3s cubic-bezier(.7, .3, .1, 1);
    background: rgba(0, 0, 0, .2);
    width: 0;
    height: 0;
    top: 0;
    left: 0;
    position: fixed;
    z-index: -1;
  }

  .rightPanel {
    background: #fff;
    position: fixed;
    height: 100vh;
    width: 100%;
    max-width: 260px;
    top: 0;
    box-shadow: 0 0 15px 0 rgba(0, 0, 0, .05);
    transition: all .25s cubic-bezier(.7, .3, .1, 1);
    transform: translate(100%);
    z-index: 200;
    left: auto;
    right: 0;
  }

  .show {
    transition: all .3s cubic-bezier(.7, .3, .1, 1);

    .rightPanel-background {
      z-index: 100;
      opacity: 1;
      width: 100%;
      height: 100%;
    }

    .rightPanel {
      transform: translate(0);
    }
  }

  .handle-button {
    position: absolute;
    border-radius: 6px 0 0 6px !important;
    pointer-events: auto;
    z-index: 0;
    cursor: pointer;
    pointer-events: auto;
    font-size: 24px;
    text-align: center;
    color: #fff;
    line-height: 48px;
    left: -22px;
    width: 22px;
    height: 52px;
    transition: all .2s;

    &:hover {
      left: -48px;
      width: 48px;
    }

    i {
      font-size: 16px;
      line-height: 48px;
    }
  }
}
</style>
